Window-sash.



1. G. STOLP & P. W. BOWDB.

WINDOW SASH.

APPLIOATION FILED Nov. 2o, 1907.

908,61 5. Patented Nov. 10, 1908.

l. i. HW m www l?) v l .fl I r o A -AJ ffmc/v5 1/5 ATo all 'whom 'it may concern:

UNITED STATES PATENT OFFICE.,

IRA G. STOLP AND PAUL W. BOWDE, OF WAUKESHA, WISCONSIN.

WIND OW-SASH.

Specification of Letters Yatent.

Patented Nov. 10, 1908.

Application flied November 20, 1907. Serial No. 403,097.

Be it known that we, IRA G. S'roLP and IAuL W. Bowne, citizens of the United States, residing at Waukesha, in the county of Waukesha and State of Wisconsin, have invented a new and useful Window-Sash, of'which the following is a specification.

A The present invention relates to improvements mwindow sashes and analogous structures, and it has for its object to provide an improved device.of this character wherein the glass panel may be readily swung into a position that will facilitate its cleaning, or for Ventilating purposes, the sash being composed of a pair of coperating frames that are so joined that air, as well as water or dampness, is excluded, the frames being so constructed that they cannot be opened from the exterior ofthe window by unauthorized persons.

To 'these and other ends,'the invention comprises the various novel features of construction and combination and arrangement of parts, which will be hereinafter more fully described and particularly pointed out in the appended claims.

In the accompanying drawings z-Figure 1 is Lan elevation of a window frame equipped with upper and lower sashes constructed in accordance with the present invention. Fig. 2 represents a section on the line 2-2 of Fig. 1, the lower glass carrying frame being shown in open position. Fig. 8 represents a section on the lineB-B of Fig. 1. v n Q Corresponding parts in the several iigures are indicated throughout by similar characters of reference.

In the present embodiment of the invention, an ordinary window frame 1 is employed having three beads 2, 2a and 3 at the opposite sides thereof to form a pair of vertical grooves in which the upper and lower sashes operate in the usual manner. The upper sash is composed of a pair of inner and outer frames 4 and 5, while the lower sash is composed of a similar pair of inner and outer framesG and 7, the inner frame in each instance being fitted with the glass panel or panels 8, and the outer frame in each case is fitted to operate vertically within the window frame.

In order to permit the glass carrying frame to be removed for cleaning and other purposes and without the necessity of re' moving the outer sash frame from the winagainst the window during storms.

that when the two dow frame, the sash frames are removably fitted one lWithin the other, the corresponding rails of the two frames being so formed as to provide a tight joint that will exclude "air that -would cause drafts, and also prevent the entrance of rain when driven presentvinstance, each outer sash frame has a longitudinal rib 9 projecting upwardly from its lower rail, and the corresponding rail of the inner or glass carrying frame 1s vprovided with a groove 10, the coperating rib and groove serving to prevent disengagement of'the lower portions of the frame.

In order to permit a relative pivotal or tilting movement between the two frames for the purpose of enabling the glass carrying frame to be removed or vadjusted into an open position, it is preferable to provide a concaved recess 11 in the outer frame and at the inner side of the upwardly projecting rib, a rib 12 having a correspondingly curved surface being provided on the inner frame at the inner side of the groove therein and arranged to cooperate with the concaved recess of the outer frame'. It is also preferable to provide a slope or inclined surface 13 on, the lower rail of the outer frame and at the outer or' exposed side thereof, the slope preventing rain from beating in through the joint between the frames. A longitudinal rib 14, which is formed on the lower edge of the inner frame at one side of the groove therein is adapted to coperate with the slope or inclined surface on the outer frame, so that this rib, engaging at the outer side of the rib 9 on the outer frame,

serves to prevent a relative inward movement of the glass carrying frame, while the rib 12, coperating at the inner side of the rib 9, serves to prevent arelative outward movement ,of the glass carrying frame, so

sash frames are in cooperative relation, their lower portions are positively held from movement in either di rection.

The top rails of the inner and outer sash frames, and the two vertical or side rails, are provided with coperating ribs and grooves which serve to eifectually seal the joint between the frames for the purpose of excluding air and moisture, and they also serve to prevent an outward movement of the glass carrying frame relatively to the outer sash frame, so that the glass portion of the sash may be removed from the inner side of the In the sliding movement thereof.

, A window sash constructed in accordance' with vmy present invention eliminates the 'latter and 4the flange fitting into a correspondingly-shaped groove 1T formed in the top and side rails of the outer sash vframe. The outer frame is also provided with an inwardly ,projecting rib 18 having an inclined surface 19 arran ed to coperate with a correspondingly beve ed surface 20 on the circumference of the inner frame, the flange and its bead and the inturned rib serving to break the Vjoint between the two frames' suficiently to render it liquicland air tight'and v'also serving to prevent outward movement of the glasscarrying frame relatively to the outer frame. v

The glass carrying frame is of such a sizer thatit 1s c a the stops o thewindow frame, and, by tilting the upper end of the glass carrying ing or other purposes.

portions ofthe two-frames cannot be disen to retain `the so thatfthe glass carrying'frame cannot be frame inwardl two frames wil engaged, the placed in any the lower portions of the glass carryin vframe being convenient position for clean- However, the lower gaged until the glass been tilted inwardly.

Any suitable catch'may be employed for locking the frames in cooperative relation, a catch 21 being shown in thev present instance which is carried by one of the frames and engages a coperatingcatchinember 22 on the other frame, the catch when locked serving frames in coperative relation carrying frame has tilted into open position. A catch of the usual or any desired form, may be applied to the lsashes in the usual way to prevent risk of injury incident to the washing or cleaning of windows, as the glass may be readily removed from the window so that its outer surface -inay be window, and the coperating 'ribs and grooves of the sash frames serve not only to seal the window to prevent entrance ofwind and rain but they also prevent removal vof the glass section of the sash'from the outer side of the window, a single catch for each sashserving to prevent'unauthorized opening of the sash from the outside.

present instance', the i and a glass carrying frame 'movably fit` the -outer frame, one of the able of swinging'freely between' be unlocked and may be dis` ladapted tol operate in the window and a glass carrying frame removably fitted reached without the,

'and coperating with necessity of climbing'to the outside of thev rib being sloped outwardly and its inner" side being concave, an inner glass carrying frame having a pair of ribs thereon, `one of the said ribs engaging at the outer. side of the rib on the outer frame and having an inclined portion coperating with the slope,-

andthe other rib engaging at. the inner side of the rib onthe outer frame land having a. convex surface thereon coperating with thc said concave portion, with the frames vfor tilting thereof. v y

2. A. sash composed: 'of an-outer frame adapted to operate in the window casing,

adapted to reand means coperating preventing 'a relative framesbeing provided with an outwardly f projecting ange on its periphery provided with a bead on one ofits sides, the other frame being-provided with, a recess to ref ceive'the said flange and bead, and a devicefor securing the lation.

3. A sash rames in cooperative recomposed of an outer frame therein,

one of the frames having an inwardly projecting rib` provided 'with an inclined surface and having a recess adjacent to the rib, and theother .frame having a ange adapted to lit the said recess 'in lthe other frame and provided'with ya-"loeveled i edge to coperate with the inclined side of thej rib on the coperating' frame.

4. A sash composed frames removably fitted together, the lower rail of the outer frame being provided on its upper side with a longitudinal rib, and

the lower edgeof the inner frame being vided with a pair of pro- IRA G. STOLP. PAUL W. BOWDE. `4Witnesses: .i f. .0. EfAiiMIN,

FLORENCE DOLE.

of inner and outer .Y

casing,

arallel ribs adapted to Y engage atopposite si es of therib first men-.

1 1'5 our s1g- .natures 1n the presence of two witnesses. 

